SU1257162A1 - Device for core tool orientation - Google Patents

Description

one

The invention relates to mining, to means for drilling with coring and with indication of its position in space.

The aim of the invention is to simplify the construction and increase reliability in operation.

The drawing shows a corona torus, a partial section.

The coringorient contains a single-column pipe 1, an adapter 2, a sensor orientator 3, a crown 4, a coring device consisting of, and a housing-holder 5 with an anti-friction coating, such as fluoroplastic 6, which supports the function of the bearing supports, and a core ring 7. A marking cutter 8 is fixed on the casing 5 for applying risks 9 to the core 10, as well as a replaceable washer 11 made of a plastic-deformable material, on the working surface of which an imprint of the indenter 12 installed in the crown 4 along the zero plane is taken. scrap apsidal angle of borehole. The indenter 12 is skrigg in the openings of the casing in the form of a ring 13 made of an elastically deformable and antifriction material, for example rubber. When the core is rotated and drilled, it protects the washer 1

from the premature interaction with the indenter 12. The indenter 12, the washer t1 and the ring-cover 13 on the crown 4 form the mark position recorder

Editor N.Slobod nickname Order 4887/23

Compiled by V. Aksler

Tehred M .. Margental, Proofreader V. But ha

Circulation 548 Subscription

VNIRSHI State Committee of the USSR

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d, 4/5

Production and printing company, Uzhgorod, st. Project, 4

the cutting tool. The ring 14 is a plain bearing thrust bearing made of an anti-friction material, such as fluoroplastic.

A core adapter is lowered into the well and drilled. The core formed at the same time enters the core pipe 1, and the cutter 8 makes risk 9 on core 10, while the core device does not rotate with crown 4, which is achieved by using antifriction bearings in the device: materials. Before the core is taken off, the rotation of the projectile is stopped and the position of the core-orientation device relative to the apsidal plane of the well is recorded using an orienting sensor 3, for example, a liquid one (on the core of which an imprint of the solution of copper sulfate is obtained). The shells are then removed from the well. At the moment of the core separation, the washer 11 is marked with an indenter 12, mounted respectively (Zero plane of the orientator 3, which serves as the starting point of the apsidal borehole angle) On the surface, in accordance with the inclinometric measurements of the well, the core is oriented. on its side surface and on the imprint on the washer 11.

The use of a core pivot will allow to orient the entire core obtained during drilling, and at any depth and with small bore diameters.

Claims (1)

A CORE ORIENTATOR, comprising a core tube, a crown, a sensor orientator, a non-rotating core pass bearing cage. a paradise fixed on a cage marking cutter and a core-cutting device in the form of a body with a core gripping ring, characterized in that, in order to simplify the design and increase reliability in operation, the sensor, orientator is mounted on the core tube, and the cage on the bearing supports and with a marking cutter it is installed in the crown and is the body of the core-cutting device, while the core-orientator is equipped with a positioning marker for the marking cutter, made in the form of a washer made of plastic-deformer fixed to the lower end of the holder material and the indenter interacting with it, mounted on the crown in an elastically deformable GO SL to ’1257’